Finding the Fourth Proportional to 2,878,125.79, 4,319,901.24 and 2,117,648.56
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Solution
The fourth proportional to 2,878,125.79, 4,319,901.24 and 2,117,648.56 is: 3,178,468.67
Step by Step Solution
- Step 1: Write the proportion equation
2,878,125.79 : 4,319,901.24 = 2,117,648.56 : x - Step 2: Convert to fraction form
2,878,125.79/4,319,901.24 = 2,117,648.56/x - Step 3: Cross multiply
2,878,125.79x = 4,319,901.24 × 2,117,648.56 - Step 4: Simplify right side
2,878,125.79x = 9,148,032,640,228.22 - Step 5: Solve for x
x = 9,148,032,640,228.22/2,878,125.79 - Step 6: Final answer
x = 3,178,468.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.